I'm a principal researcher at National ICT Australia in Sydney, currently heading the DMiST-project.

Member of the Sydney Algorithms and Computational Thinking (SACT) research group.

Former member of the algorithms group at the Faculty of Mathematics and Computing Science in Eindhoven, the Geometry Lab at the Department of Computer Science in Lund, Sweden and the Geometry, Imaging, and Virtual Environments group at the department of Information and Computing Sciences in Utrecht, the Netherlands.

I have, or have had, five great PhD students:
- Mattias Andersson, Lund University (finished 2007)
- Mohammad Farshi, TU Eindhoven (finished 2008)
- Damian Merrick, University of Sydney (finished 2008)
- Bojan Djordjevic, University of Sydney (started April 2007)
- Radwa El Shawi, University of Sydney (started March 2009)

Teaching comp5045 in the first semester 2009 at University of Sydney.

Managing editor for Journal of Computational Geometry (JoCG) and in the editorial board for the International Journal of Computational Geometry and Applications (IJCGA).

Together with Tasos Viglas I'm trying to maintain a blog called Dense outliers.